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Finding the Fourth Proportional to 2,575.65, 3,863.41 and 627.84

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Solution

The fourth proportional to 2,575.65, 3,863.41 and 627.84 is: 941.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,575.65 : 3,863.41 = 627.84 : x
  2. Step 2: Convert to fraction form
    2,575.65/3,863.41 = 627.84/x
  3. Step 3: Cross multiply
    2,575.65x = 3,863.41 × 627.84
  4. Step 4: Simplify right side
    2,575.65x = 2,425,603.33
  5. Step 5: Solve for x
    x = 2,425,603.33/2,575.65
  6. Step 6: Final answer
    x = 941.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.